peptide bonds to occur. The second set of tests are the “Specific Tests”‚this involves carrying out three separate tests. The first being the “(3)Test for Aromatic Amino Acids” which is used to differentiate between aromatic and non aromatic amino acids. In theory what should happen is that the nitric acid and ammonia react with the aromatic ring and gives a coloured salt compound. When Nitric acid is heated with a protein like tyrosine it gives off a yellow colour ‚or tryptophan and orange colour
Premium Amino acid
How Carboxylic Acids and Alcohols React to Produce Esters: Esters and Ester Production: Esters are abundant and ever present‚ and are the chemical basis of almost all fatty acids and oils. Small esters are responsible for the aroma of fruits‚ perfumes and‚ by extension‚ wines and other alcohols. Esters are formed when a carboxylic acid and an alcohol chemically combine‚ losing a molecule of water in the process. Carboxylic acids are organic molecular compounds that form a homologous series
Premium Acetic acid Alcohol Carboxylic acid
BIOREMEDIATION INTRODUCTION:- The process of bioremediation was reportedly devised by George M Robinson in the 1960 during experimentation with dirty jars and the introduction of microbes this was however not applied until the 1972 clean out of the fuel holding tanks on the RMS queen mary. Science 1972 bioremediation has become greater developed as a means of cleaning up spills of gasoline diesel ‚ heavy metals and other easily degraded petroleum products (National Research Council 1993). Bioremediation
Premium Aromaticity Bacteria Benzene
Brochure BITSAT-2013 A Computer Based Online Test for Admission to Integrated First Degree programmes of BITS‚ Pilani‚ 2013-14 The Birla Institute of Technology and Science (BITS) Pilani is an all India Institution declared as Deemed to be University under Section 3 of the UGC Act. Admissions to all the Integrated First Degree programmes of BITS‚ Pilani‚ at Pilani campus‚ Goa campus‚ and Hyderabad Campus for the academic year 2013-14 will be made on the basis of a Computer based Online Test
Premium Secondary education Chemical reaction
BreadTalk – Boutique Bakery A Contemporary Lifestyle Concept BreadTalk opened in Singapore in July 2000 with a revolutionary take on the bread industry. Entering the market with its new concept of a boutique bakery‚ it shook up the bakery industry with its innovative and creative products. Currently the market leader in the new concept bakery‚ BreadTalk was listed in June 2003 on the Singapore Exchange‚ giving customers a stake in the popular bakery. BreadTalk has close to 200 varieties of
Premium Retailing Bread Sales
Multistep Synthesis of Tetraphenylcyclopentadienone In this laboratory experiment a synthesis was performed through several separate steps. The purpose of the experiment was to synthesize tetraphenylcyclopentadienone from benzaldehyde and to run reactions on carbonyl containing compounds. There was a total of three steps that led up to the synthesis of the final product‚ tetraphenylcyclopentadienone. The first step of the experiment was the condensation of benzaldehyde to yield
Premium Temperature Carbon Carbonyl
Benzil | 82.5 – 85.6 | Final Benzil | 94.2 | Final Benzilic Acid | 148.3 | Table 3: Melting Points Wavenumbers (cm-1) | Functional groups | 1593 | Aromatic | 3065 | Sp2 C-H bond | 1659 | C=O bond/carbonyl group | Table 4: IR wavenumbers and functional groups of Benzil Wavenumbers (cm-1) | Functional groups | 1600 | Aromatic | 3100-3000 | Sp2 C-H bond | 3100-2900 | Carboxylic Acid | 3300 | O-H alcohol | 1650 | C=O bond/carbonyl group | Table 5: IR wavenumbers and functional
Premium Stoichiometry Alcohol Carboxylic acid
Grignard reaction Abstract: In this laboratory‚ triphenylmethanol was synthesised from reacting benzophenone and bromobenzene using Grignard reaction. As the reaction was to set up to produce a Grignard reagent and then recrystallize it to obtain pure sample. The percentage yield obtained was 55% and its melting point was 161 co which is within the literature value 160-163 co. In addition to that the IR spectroscopy confirmed the molecule structure to be triphenylmethanol. Introduction: The Grignard
Premium Alcohol Ethanol Functional group
Although phenols are structurally similar to alcohols‚ they are much stronger acids‚ however they are weaker acids compared to carboxylic acids. In the experiment‚ the following samples of aldehydes are used‚ 1) Benzaldehyde It is the simplest aromatic aldehyde. It is employed to confer almond flavor. It is used chiefly as a precursor to other organic compounds‚ ranging from pharmaceuticals to plastic derivatives. 2) Formaldehyde It is the simplest form of aldehyde‚ also called methanal
Premium Alcohol Functional group Carboxylic acid
secondary metabolite‚ which means the survival of the plant does not depend on these compounds. The chemical structures of flavonoids are based on a C6-C3-C6 skeleton and they differ in the saturation of the heteroatomic ring C‚ in the placement of aromatic ring B at the positions C-2 or C-3 of ring C‚ and in the overall hydroxylation patterns (Grotewold 2008). FIGURE 1.0 General molecular structure of flavonoid. [Adapted from Xu et al. 2007] Out of the many known classes of flavonoid‚ isoflavone
Premium Mass spectrometry Chromatography Soybean